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Technical Data Sheet
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8T-0639 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

8T-0639: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include end_item_identification: 320B TRACK TYPE EXCAVATOR; MRAP - M-ATV. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-546-9372, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
8T-0639
NSN: 5306-01-546-9372
FSC: 5306 — Bolts
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
end_item_identification320B TRACK TYPE EXCAVATOR; MRAP - M-ATV
NSN5306-01-546-9372
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 8T-0639 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATION320B TRACK TYPE EXCAVATOR; MRAP - M-ATV
SUBSTITUTES & CROSS-REFERENCES 1
4185957Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8T-0639?
8T-0639 is a BOLT,MACHINE.
What parts can replace 8T-0639?
There is 1 known substitute for 8T-0639: 4185957. Substitute compatibility should be verified for your specific system.
What is the NSN for 8T-0639?
8T-0639 is cataloged in the U.S. Government catalog under NSN 5306-01-546-9372. This indicates validated use in U.S. government and defense supply chains.
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